of noebistown



July 31, 1928. 1,678,907

K. HOWIE TRICK WHEEL FOR KNITTING MACHINES Filed May 21, 1927 Inueni'or:

Kenneth Jfawie,

iii)

Patented July 31, 1928.

UNITED STATES PATENT OFFICE.

KENNETH HOWIE, OF NORRISTOWN, PENNSYLVANIA, ASSIGNOR T0 WILDMAN MFG:(10., OF NORBISTOWN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

TRICK WHEEL FOR KNITTING MACHINES.

Application filed May 21, 1927. Serial No. 193,280.

The invention concerns a trick wheel or tuck wheel for knittingmachines. One object is to provide a construction whereby fine gauges offabric may be produced, the trick wheel being applicable to a machine ofsay, for instance, twenty-eight cut.

Another object of the invention is to enable the pattern to be changedas may be desired.

A further object is to provide a simple and economical construction.

I11 the accompanying drawings: Figure 1 is an edge View of a trick wheelembodying my invention, the wheel being shown, at the inclination itwould occupy in the machine this however being arbitrary.

Fig. 2 is a sectional View. Fig. 3 is a. plan view of the body of thewheel, showing the cuts to receive the projections or inserts.

Fig. 4 is a bottom plan view of the cap plate.

Fig. 5 shows various views of one of the insert piece or projections.

Fig. 6 shows in perspectiv one of the plain inserts.

Fig. 7 is a perspective View of one of the shouldered inserts whichelevates the nee- 'dles.

' In carrying out the invention with the object of providing a trickwheel for the finer gauges of machines, I employ inserts 1, 2 of thinsheet metal which are mounted in the cuts 8 of the body 9 ofthe wheel.

As shown in Fig. 6 .some of these inserts 1 are simply plain sheet metalpieces and as shown in Fig. 7, there are metal pieces or inserts 2provided with turned over portions 3 which provide the shoulders toengage the butts of the'needles.

These insert pieces have each a point 4 to bear against the periphery ofthe wheel body and they have each a notch 5 in its upper edge to beengaged by a rib 6 on the cap piece or plate 7, between which and themain body 9 of the wheel the inserts are held, said plate 7 being heldin place by screws 11. The body portion 9 of the trick Wheel has a hub10 by which said wheel is mounted on a suitable support. The inserts areplaced in the body of the trick wheel at an angle to the upper and lowerfaces thereof, this angle being such that when the trick wheel is inplace and at an angle to a horizontal plane, the spaces or guide groovesbetween the adsuitabl cam forming a part of the machine.

The inserts are stamped from thin sheet metal and the shoulders 3 areformed by turning over a part of the stamped piece. This shoulderedportion lies outside the wheel body and this is true of the outer endportions of all of the insert pieces. The turned over flanges 3 formingthe shoulders extend across the space, or groove, from the insert piecewhich carries it to the side face of the adjacent insert piece so as toform a shoulder to engage the butt of the needle and lift the same.

By reason of the employment of inserts as the walls between the grooves,these walls can be made of thin sheet metal thus en abling the trickwheel to be produced for the finest gauges.

It will be observed that the flanges 3 are turned over at such an angleto the body of its insert member that when placed in the body of thewheel at the prescribed inclination. the free edge of said flange willcontact with the adjacent insert piece at a short distance below theupper edge thereof so that the shoulder provided by this flange will beat the bottom of a small recess or notch receiving the butt of theneedle, and I have marked one of these notches in Fig. 1 at a. Thisnotch is defined by the flange and by "the side wall of the adjacentinsert piece.

I claim:

1. A trick wheel for knitting machines having insert pieces mountedtherein and spaced apart from each other, some of said insert pieceshaving flanges extending across the spaces between the said pieces toprovide shoulders for engaging the needle butts, others of said insertpieces having no flanges to leave adjoining spaces free to receive theneedle butts, substantially as described.

2. A trick wheel for knitting machines having insert pieces spacedapart, some of which have integral flanges turned over from their upperedges to extend across the adjacent space to provide a shoulder foroperating the needle and other of said insert pieces having free spacesbetween them to receive the needle butts idly substantially asdescribed.

3. .A trick wheel for knitting machines having insert pieces withflanges on some of them at such an angle thereto that notches will beformed for the needle butts between adjacent inserts, said flangesforming the bottom of said notches, those inserts which have no flangesproviding free spaces for receiving the needle butts idly, substantiallyas described.

4. A trick wheel for knitting machines comprising a body having cuts orkcrfs therein, sheet metal pieces inserted in said cuts and projectingtherefrom and means for obstructing the spaces between certain of saidinsert pieces while the spaces between certain other insert pieces areleft free, said means being carried by certain of said insert pieces.substantially as described.

5. A trick Wheel having thin sheet metal pieces inserted therein at aninclination to the up er and lower faces of the wheel, some of saidinsert pieces having integral flanges turned to lie across the spacebetween adjacent pieces and with the free edges of said fian es belowthe upper edges of the adja cent insert piece to provide a notch toreceive the needle butt of which notch said flange forms the bottom,others of said insert pieces having free spaces between them to receiveneedle butts idly, substantially as described.

In testimony whereof, I affix my signature.

KENNETH HOlVIE.

